探讨与常规保留神经的前列腺癌根治术相比 ,通过术中刺激海绵体神经检测阴茎勃起程度 ,对海绵体神经进行定位 ,是否可以改善患者术后的勃起功能的可能性。本研究为前瞻性、随机单盲实验 ,包括来自 6个中心的 6 1例患者。患者均接受保留神经的前列腺根治术 ,术前经性功能调查问? To investigate whether the erectile function of patients with postoperative erectile dysfunction can be improved by locating the cavernous nerves by intraoperative stimulation of the cavernous nerve to detect the erection of the penis compared with the conventional radical prostatectomy with nerve preservation. This study is a prospective, randomized, single-blind experiment involving 61 patients from 6 centers. All patients underwent radical prostatectomy, preoperative sexual function investigation?